what happens to the distance of particles when kinetic energy decreases

they get closer together

why is kelvin temp used in specificed calculations that involve gases

there are no negative numbers

5 parts of the kinetic theory

1. all gases are composed of individual particles that are in continuous random motion
2. the higher the temp, the faster the motion
3. collisions are "elastic"-particles that are moving are colliding with each other-the particles don't lose energy when they collide
4. the volume of the individual gas particles is negligible compared to the volume of the space they move in (particles are mostly empty space- volume=0)
5. no forces of attraction between particles of a gas

what two things are wrong in the kinetic theory

1. there ARE forces of attraction between particles of a gas
2. the particles DO have volume

what does gas pressure result from?

results from the particles colliding with each other and the sides of the container